Easy-trim Pro-Felt vapour membrane is a cost effective breather membrane that delivers strength and performance.­  It combines high vapour permeability and water resistance with resilience to nail tears.The flexible Pro membrane is a suitable underlay for tiled and slated roofs, whether or not the rood is of warm or cold roof construction and whether or not the underlay is fully supported or unsupported

• High Breat­ha­bility - Eliminates Roof Space Ventilation
• Printed cutting guide (Black).
• Great resistance to nail tears
• High tensile strength
• 1.5 m x 50m Roll Size - 75m²
• Can be used for vertical wall construction as a wind barrier
• Weight: 122g/m²
• BBA Certificate No. 10/4753.

Install with the black-printed cutting guide uppermost and lapped to shed water out and down the slope. The vapour permeable Easytrim Pro-Felt membrane can be installed without the need for ventilation given that the roof remains air tight and convection free for the life of the structure. In cold non ventilated roofs NHBC section 7.2 prescribes a 5mm continuous ridge ventilation. TheEasy-trim dry ridge system can be used to acheive this.